Greenhouse gas (GHG) emissions from agro-ecosystem have been widely concerned as a hot issue. Tillage methods siGreenhouse gas (GHG) emissions from agro-ecosystem have been widely concerned as a hot issue. Tillage methods significantly affect GHG emissions in the farmland. This study was conducted on double cropping system of winter wheat and summer corn in North China with four treatments (conventional tillage CT, conventional tillage with straw retention CTS, no-tillage with straw retention NTS, rotary tillage with straw retention RTS). In order to study tillage effects on field GHG emissions, CO2, N2O and CH4emissions fluxes were collected. Results showed that soils of each the treatment were net sources of CO2, but RTS and NTS consumed atmospheric CH4, while N2O emission exhibited high annual flux in all the treatments except RTS; soil moisture contents in NTS were maximum (19.3%) and significantly higher compared to the other treatments (at P<0.05 level); CO2emission fluxes (g CO2m-2y-1) were generally in the order of CTS (6460.3) > CT (5568.4) > RTS (5421.2) > NTS (4200.1); integrated evaluation of field greenhouse effect indicated that it was mainly caused by CO2, with CH4and N2O as subsidiary components; total greenhouse effect under different tillage treatments was followed NTS < RTS < CT < CTS in North China Plain.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.